JAMB Chemistry 2016 Objective — Question 31
Question 31 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2016 Objective paper, with the correct answer and a full explanation.
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31. Which of the following is not an alkali? A. Ca(OH)2 B. NH3 C. NaOH D. Al(OH)3
- A. Ca(OH)2
- B. NH3
- C. NaOH
- D. Al(OH)3Correct
Explanation
An alkali is a metallic hydroxide that is soluble in water. Examples of alkalis are NaOH and KOH. Ca(OH)2, Al(OH)3, Fe(OH)2, Fe(OH)3, NH4OH etc. are mere bases, not alkalis.
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